#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i=0,c=0,a=0;
	cin>>n;
	i=n%10;
	c=n/10;
	a=i*10+c;
	cout<<a;
    }

/**************************************************************
	Problem: 1606
	User: huxuanchen
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2072 kb
****************************************************************/